Climate Monmouth - Illinois
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 33 | 38 | 51 | 65 | 74 | 83 |
| Average low in ºF Av. low Lo | 16 | 20 | 30 | 41 | 51 | 60 |
| Av. precipitation in inch Av. precip. Pre. | 1.66 | 1.87 | 2.75 | 3.92 | 4.75 | 4.36 |
| Av. snowfall in inch Snowfall Sn | 8 | 6 | 3 | 1 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 86 | 84 | 78 | 66 | 51 | 36 |
| Average low in ºF Av. low Lo | 64 | 62 | 53 | 43 | 32 | 20 |
| Av. precipitation in inch Av. precip. Pre. | 4.21 | 4.07 | 3.54 | 3.06 | 2.82 | 2.37 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 1 | 6 |
Monmouth Climate Graph - Illinois Climate Chart
Daily normals Monmouth - Illinois - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 32.7 | 16.5 | 0.08 | 0.08 | 0.20 | 0.50 |
| 2 Jan | 32.7 | 16.3 | 0.12 | 0.12 | 0.51 | 1.30 |
| 3 Jan | 32.6 | 16.2 | 0.16 | 0.16 | 0.71 | 1.80 |
| 4 Jan | 32.6 | 16.1 | 0.24 | 0.24 | 0.98 | 2.50 |
| 5 Jan | 32.5 | 16.0 | 0.28 | 0.28 | 1.30 | 3.30 |
| 6 Jan | 32.5 | 15.9 | 0.31 | 0.31 | 1.50 | 3.80 |
| 7 Jan | 32.5 | 15.8 | 0.39 | 0.39 | 1.81 | 4.60 |
| 8 Jan | 32.5 | 15.7 | 0.43 | 0.43 | 2.09 | 5.30 |
| 9 Jan | 32.5 | 15.7 | 0.51 | 0.51 | 2.40 | 6.10 |
| 10 Jan | 32.5 | 15.6 | 0.55 | 0.55 | 2.60 | 6.60 |
| 11 Jan | 32.5 | 15.5 | 0.59 | 0.59 | 2.91 | 7.40 |
| 12 Jan | 32.5 | 15.5 | 0.67 | 0.67 | 3.19 | 8.10 |
Weather history Monmouth - April 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Apr | 80.1 | 39.9 | 0.60 | 0.00 | 0.0 |
| 02 Apr | - | 39.0 | 1.45 | 0.00 | 0.0 |
| 03 Apr | 73.9 | 44.1 | 0.40 | 0.00 | 0.0 |
| 04 Apr | 66.9 | 41.0 | 0.75 | 0.00 | 0.0 |
| 05 Apr | 45.0 | 35.1 | 0.00 | 0.00 | 0.0 |
| 06 Apr | 55.0 | 37.9 | 0.00 | 0.00 | 0.0 |
| 07 Apr | 53.1 | 34.0 | 0.00 | 0.00 | 0.0 |
| 08 Apr | 43.0 | 34.0 | 0.00 | 0.00 | 0.0 |
| 09 Apr | 75.0 | 43.0 | 0.00 | 0.00 | 0.0 |
| 10 Apr | 69.1 | 46.9 | 0.38 | 0.00 | 0.0 |
| 11 Apr | 57.0 | 37.0 | 0.00 | 0.00 | 0.0 |
| 12 Apr | - | 52.0 | 0.00 | 0.00 | 0.0 |
| 13 Apr | 79.0 | 52.0 | 0.22 | 0.00 | 0.0 |
| 14 Apr | 80.1 | 62.1 | 0.00 | 0.00 | 0.0 |
| 15 Apr | 84.9 | 60.1 | 0.32 | 0.00 | 0.0 |
| 16 Apr | 77.0 | 60.1 | 0.10 | 0.00 | 0.0 |
| 17 Apr | 79.0 | 57.0 | 0.00 | 0.00 | 0.0 |
| 18 Apr | 84.9 | 37.0 | 1.37 | 0.00 | 0.0 |
| 19 Apr | 52.0 | 34.0 | 0.00 | 0.00 | 0.0 |
| 20 Apr | 55.9 | 30.0 | 0.00 | 0.00 | 0.0 |
| 21 Apr | 63.0 | 46.0 | 0.00 | 0.00 | 0.0 |
| 22 Apr | 79.0 | 54.0 | 0.00 | 0.00 | 0.0 |
| 23 Apr | 80.1 | 55.0 | 0.00 | 0.00 | 0.0 |
| 24 Apr | 84.0 | 55.9 | 0.20 | 0.00 | 0.0 |
| 25 Apr | 68.0 | 45.0 | 0.00 | 0.00 | 0.0 |
| 26 Apr | 72.0 | 44.1 | 0.00 | 0.00 | 0.0 |
| 27 Apr | 78.1 | 44.1 | 0.00 | 0.00 | 0.0 |
| 28 Apr | 73.0 | 48.9 | - | 0.00 | 0.0 |
| 29 Apr | 64.0 | 46.9 | 0.00 | 0.00 | 0.0 |
| 30 Apr | 60.1 | 37.0 | 0.00 | 0.00 | 0.0 |
Past weather Monmouth
| Apr 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 69.0 ºF | 33 ºF | |
| Average low temperature Av. low temp. | 45.1 ºF | 16 ºF | |
| Total precipitation Total precip. | 5.79 inch | 1.66 inch | |
| Total snowfall Total snowfall | 0.00 inch | 8 inch | |
| Highest max temperature Highest max temp. | 84.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 43.0 ºF | - | |
| Highest min temperature Highest min temp. | 62.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 30.0 ºF | - | |
Past weather April 2026 incomplete - Missing data
Geo Monmouth - Illinois
| Country | United States | |
|---|---|---|
| State | Illinois | |
| County | Warren | |
| City | Monmouth | |
| Zip Code | 61462 | |
| Longitude | -90.63 dec. degr. | |
| Latitude | 40.93 dec. degr. | |
| Altitude - Elevation | 748ft | |
| ICAO | - | |
| IATA | - |
Date and Time Monmouth - Illinois
| Local Time | 09:49 PM | |
|---|---|---|
| Sunrise | 05:28 AM | |
| Sunset | 08:34 PM | |
| Day/Night | Night | |
| Timezone | Chicago -6:00 | |
| Timezone DB | America - Chicago |
Map of Monmouth - Illinois
USGS National Map — Open interactive map
Monmouth weather averages
| Annual high temperature | 62ºF |
| Annual low temperature | 41ºF |
| Average annual precip. | 39.38 inch |
| Av. annual snowfall | 25 inch |
Station Data
Monthly averages Monmouth
Longitude: -90.6311, Latitude: 40.9297
Average weather Monmouth, IL - 61462
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...